Air conditioner



FIG. 1 is a front, bottom and right side perspective view of an air conditioner, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof, the broken line disclosure understood to represent unclaimed portions of the article in which the claimed design is embodied;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is an enlarged vertical cross-sectional view thereof taken along line 8-8 of FIG. 2, with broken line disclosure of internal elements understood to represent unclaimed portions of the article in which the claimed design is embodied;

FIG. 9 is an additional enlarged vertical cross-sectional view thereof taken along line 9-9 of FIG. 2, with broken line disclosure of internal elements understood to represent unclaimed portions of the article in which the claimed design is embodied; and,

FIG. 10 is an additional front, bottom and right side perspective view showing the claimed design in a state of use. 

The ornamental design for an air conditioner, as shown and described. 